package com.hua.lease.web.admin.custom.converter;

import com.hua.lease.model.enums.BaseEnum;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.ConverterFactory;
import org.springframework.stereotype.Component;

// 自定义转换器工厂,用于将前端传来的json字符串转换成枚举类型
@Component
public class StringToBaseEnumConverterFactory implements ConverterFactory<String, BaseEnum> {
	@Override
	public <T extends BaseEnum> Converter<String, T> getConverter(Class<T> targetType) {
		return new Converter<String, T>(){
			@Override
			public T convert(String code) {
				T[] enumConstants = targetType.getEnumConstants();
				for (T enumConstant : enumConstants) {
					if (enumConstant.getCode().equals(Integer.valueOf(code))) {
						return enumConstant;
					}
				}
				throw  new IllegalArgumentException("code:" + code +"非法");
			}
		};
	}
}
